Blood vessel trap



FIG. 1 is a view in perspective showing the top, one side and one end of a blood vessel trap showing my new design;

FIG. 2 is a view in top plan thereof;

FIG. 3 is a view in bottom plan thereof;

FIG. 4 is a view in side elevation showing the side opposite that seen in FIG. 1;

FIG. 5 is a view in end elevation thereof as seen from right to left of FIG. 2; and

FIG. 6 is a view in end elevation thereof as seen from left to right of FIG. 2. 

The ornamental design for a blood vessel trap, substantially as shown. 